Finding the Fourth Proportional to 168,487,246.80, 252,226,985.40 and 100,294,837.20
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Solution
The fourth proportional to 168,487,246.80, 252,226,985.40 and 100,294,837.20 is: 150,142,309.99
Step by Step Solution
- Step 1: Write the proportion equation
168,487,246.80 : 252,226,985.40 = 100,294,837.20 : x - Step 2: Convert to fraction form
168,487,246.80/252,226,985.40 = 100,294,837.20/x - Step 3: Cross multiply
168,487,246.80x = 252,226,985.40 × 100,294,837.20 - Step 4: Simplify right side
168,487,246.80x = 25,297,064,438,139,780 - Step 5: Solve for x
x = 25,297,064,438,139,780/168,487,246.80 - Step 6: Final answer
x = 150,142,309.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.